Fix brace indentation.

Source/cmLocalGenerator.cxx

@@ -2011,13 +2011,13 @@ void cmLocalGenerator::AddCMP0018Flags(std::string &flags, cmTarget* target,
   else
     {
     if (target->GetType() == cmTarget::OBJECT_LIBRARY)
-    {
+      {
       if (target->GetPropertyAsBool("POSITION_INDEPENDENT_CODE"))
         {
         this->AddPositionIndependentFlags(flags, lang, targetType);
         }
       return;
-    }
+      }
 
     if (target->GetLinkInterfaceDependentBoolProperty(
                                                 "POSITION_INDEPENDENT_CODE",